NDLI: Channel addition/removal response in cascades of strongly inverted erbium-doped fiber amplifiers

Content Provider	IEEE Xplore Digital Library
Author	Karasek, M. Willems, F.W.
Copyright Year	1983
Abstract	Signal power steady-state and transient fluctuations due to gain cross saturation in erbium-doped fiber amplifiers (EDFA's) in multiwavelength optical networks caused by addition or removal of channels due to network reconfigurations or line failures must be minimized to avoid error bursts in the surviving channels. The effects of addition and/or dropping of wavelength channels in a multiwavelength network comprising six concatenated strongly inverted two-stage EDFA's have been analyzed by numerical simulation. A large-signal numerical model which incorporates time variation effects and the downstream and upstream propagation of signal, pump and amplified spontaneous emission has been used. Power excursions caused in an eight channel wavelength division multiplexing (WDM) network by the loss/addition of one, three, or six channels will be lower than 0.6 dB if the length average normalized population density of the metastable level does not drop below 0.76. No additional measures need to be taken to limit the power excursions of the surviving channels.
Sponsorship	IEEE Lasers and Electro-Optics Society Optical Society of America
Starting Page	2311
Ending Page	2317
Page Count	7
File Size	176410
File Format	PDF
ISSN	07338724
Volume Number	16
Issue Number	12
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-12-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wavelength division multiplexing Steady-state Fluctuations Erbium-doped fiber amplifier Optical fiber networks Concatenated codes Numerical simulation Numerical models Spontaneous emission WDM networks
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

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